You’ll Be Shocked To See Which 21 Celebrities Have Endorsed Hillary Clinton 5. Ellen Pompeo Credit: Marie Claire Pompeo stars in Grey’s Anatomy and also starred in the ad campaign put together by Shonda Rhimes alongside Viola Davis and Kerry Washington. Prev Next Pages: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21